Period
to 12 December 2018

The following table provides summary statistics for permanent job vacancies with a requirement for ISDN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ISDN over the 6 months to 12 December 2018 with a comparison to the same period in the previous 2 years.

Integrated Service Digital Network (ISDN)
UK
6 months to
12 Dec 2018
Same period 2017 Same period 2016
Rank 1048 1056 1038
Rank change year-on-year +8 -18 +86
Permanent jobs citing ISDN 91 143 204
As % of all permanent IT jobs advertised in the UK 0.057% 0.080% 0.11%
As % of the Communications & Networking category 0.38% 0.52% 0.65%
Number of salaries quoted 61 103 164
UK median annual salary £37,500 £45,000 £45,000
Median salary % change year-on-year -16.67% - +12.50%
10th Percentile £23,750 £26,250 £26,750
90th Percentile £57,250 £67,500 £63,375
UK excluding London median annual salary £32,000 £40,750 £42,500
% change year-on-year -21.47% -4.12% +13.33%

ISDN is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
UK
Permanent vacancies with a requirement for communications or computer networking skills 23,877 27,713 31,317
As % of all permanent IT jobs advertised in the UK 14.97% 15.45% 16.82%
Number of salaries quoted 18,727 22,423 25,578
UK median annual salary £47,500 £45,000 £45,000
Median salary % change year-on-year +5.56% - -
10th Percentile £26,250 £25,750 £26,000
90th Percentile £75,000 £72,500 £72,500
UK excluding London median annual salary £42,500 £40,000 £40,000
% change year-on-year +6.25% - -

ISDN
Job Vacancy Trend

Job postings citing ISDN as a percentage of all IT jobs advertised.

Job vacancy trend for ISDN in the UK

ISDN
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ISDN.

Salary trend for ISDN in the UK

ISDN
Salary Histogram

The salary distribution of IT jobs citing ISDN over the 6 months to 12 December 2018.

Salary histogram for ISDN in the UK

ISDN
Top 11 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the UK over the 6 months to 12 December 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +22 81 £37,500 -16.67% 15
London +55 45 £42,500 -20.56% 4
UK excluding London +40 44 £32,000 -21.47% 15
South East +1 27 £32,000 -15.79% 3
Wales - 7 - - 1
North of England +21 5 £22,500 -37.50% 3
Midlands +24 4 £41,500 -17.00% 2
North West +21 4 £22,500 -36.62% 1
West Midlands +18 4 £41,500 -17.00% 1
Yorkshire +39 1 - -
Scotland +3 1 - - 1

For the 6 months to 12 December 2018, IT jobs citing ISDN also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for ISDN.

1 51 (56.04%) Cisco
2 33 (36.26%) Windows
3 32 (35.16%) LAN
3 32 (35.16%) VoIP
3 32 (35.16%) Firewall
4 30 (32.97%) VPN
5 29 (31.87%) MPLS
6 25 (27.47%) DNS
6 25 (27.47%) Active Directory
7 24 (26.37%) Ethernet
8 22 (24.18%) WAN
8 22 (24.18%) ITIL
8 22 (24.18%) Microsoft
9 21 (23.08%) H.323
10 19 (20.88%) VMware
10 19 (20.88%) Cisco Certification
10 19 (20.88%) Juniper
11 18 (19.78%) TCP/IP
12 17 (18.68%) IIS
12 17 (18.68%) Windows Server
13 15 (16.48%) Cisco CUCM
13 15 (16.48%) Problem Management
13 15 (16.48%) CheckPoint
13 15 (16.48%) PBX
13 15 (16.48%) MS Exchange
14 14 (15.38%) ADSL
14 14 (15.38%) ATM
14 14 (15.38%) SLA
14 14 (15.38%) CCNP
14 14 (15.38%) VMware Infrastructure

ISDN
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 17 (18.68%) IIS
2 15 (16.48%) MS Exchange
3 7 (7.69%) Exchange Server 2013
3 7 (7.69%) Skype for Business
4 3 (3.30%) Exchange Server 2007
5 2 (2.20%) CMS
5 2 (2.20%) Exchange Server 2010
5 2 (2.20%) SharePoint
Applications
1 11 (12.09%) Microsoft Office
2 1 (1.10%) Microsoft Excel
2 1 (1.10%) MS Visio
Cloud Services
1 7 (7.69%) Amazon AWS
2 5 (5.49%) Office 365
2 5 (5.49%) Slack
3 2 (2.20%) Azure Active Directory
3 2 (2.20%) Microsoft Azure
Communications & Networking
1 32 (35.16%) Firewall
1 32 (35.16%) LAN
1 32 (35.16%) VoIP
2 30 (32.97%) VPN
3 29 (31.87%) MPLS
4 25 (27.47%) DNS
5 24 (26.37%) Ethernet
6 22 (24.18%) WAN
7 21 (23.08%) H.323
8 18 (19.78%) TCP/IP
9 15 (16.48%) PBX
10 14 (15.38%) ADSL
10 14 (15.38%) ATM
10 14 (15.38%) HSRP
10 14 (15.38%) IP Telephony
10 14 (15.38%) Unified Communications
11 13 (14.29%) DSL
11 13 (14.29%) GLBP
11 13 (14.29%) VRRP
12 11 (12.09%) Wi-Fi
Database & Business Intelligence
1 9 (9.89%) SQL Server
2 7 (7.69%) SQL Server 2008
2 7 (7.69%) SQL Server 2012
3 4 (4.40%) SQL Server 2014
3 4 (4.40%) SQL Server 2016
4 3 (3.30%) SQL Server 2005
5 1 (1.10%) MySQL
General
1 10 (10.99%) Telecoms
2 7 (7.69%) Welsh Language
3 4 (4.40%) Finance
4 3 (3.30%) Advertising
5 2 (2.20%) Multimedia
6 1 (1.10%) Automotive
6 1 (1.10%) Billing
6 1 (1.10%) Local Government
Job Titles
1 17 (18.68%) IT Support
1 17 (18.68%) Network Engineer
2 10 (10.99%) Analyst
2 10 (10.99%) Support Technician
3 9 (9.89%) Senior Network Engineer
3 9 (9.89%) Support Analyst
3 9 (9.89%) Voice Engineer
4 8 (8.79%) 2nd Line Support
4 8 (8.79%) Cisco Engineer
4 8 (8.79%) Consultant
4 8 (8.79%) Infrastructure Engineer
4 8 (8.79%) Infrastructure Support
5 7 (7.69%) 3rd Line Support
5 7 (7.69%) 3rd Line Support Technician
5 7 (7.69%) Infrastructure Analyst
5 7 (7.69%) Infrastructure Support Analyst
5 7 (7.69%) IT Analyst
5 7 (7.69%) IT Infrastructure Analyst
5 7 (7.69%) Operations Engineer
5 7 (7.69%) Unified Communications Engineer
Libraries, Frameworks & Software Standards
1 11 (12.09%) XMPP
2 7 (7.69%) Web Services
3 2 (2.20%) 802.1X
Miscellaneous
1 12 (13.19%) Analytical Skills
2 9 (9.89%) Video Conferencing
3 8 (8.79%) Self-Motivation
4 7 (7.69%) BBC
5 5 (5.49%) User Experience
6 3 (3.30%) CCTV
6 3 (3.30%) Driving Licence
7 2 (2.20%) Data Centre
7 2 (2.20%) Fat Client
7 2 (2.20%) Fintech
7 2 (2.20%) Replication
7 2 (2.20%) Thin Client
8 1 (1.10%) BYOD
8 1 (1.10%) EMV
8 1 (1.10%) IVR
8 1 (1.10%) Management Information System
8 1 (1.10%) Mobile App
Operating Systems
1 33 (36.26%) Windows
2 17 (18.68%) Windows Server
3 10 (10.99%) Linux
3 10 (10.99%) Windows 10
3 10 (10.99%) Windows Server 2008
4 9 (9.89%) Ubuntu
4 9 (9.89%) Windows Server 2012
5 8 (8.79%) CentOS
5 8 (8.79%) Windows 8
5 8 (8.79%) Windows Vista
6 7 (7.69%) Windows XP
7 3 (3.30%) MVS
7 3 (3.30%) Unix
7 3 (3.30%) Windows NT
7 3 (3.30%) Windows Server 2003
8 1 (1.10%) Debian
Processes & Methodologies
1 22 (24.18%) ITIL
2 15 (16.48%) Problem Management
3 13 (14.29%) Performance Monitoring
3 13 (14.29%) Proactive Management
4 12 (13.19%) Incident Management
4 12 (13.19%) Problem-Solving
4 12 (13.19%) Service Management
4 12 (13.19%) Statistical Analysis
5 11 (12.09%) Infrastructure Engineering
6 9 (9.89%) Continuous Improvement
7 8 (8.79%) Network Virtualisation
8 7 (7.69%) Business Continuity
9 6 (6.59%) CRM
9 6 (6.59%) Load Balancing
9 6 (6.59%) Presales
10 5 (5.49%) Agile Software Development
10 5 (5.49%) Configuration Management
10 5 (5.49%) Information Security
10 5 (5.49%) Telesales
10 5 (5.49%) Time Management
Programming Languages
1 10 (10.99%) C
2 9 (9.89%) PowerShell
2 9 (9.89%) SQL
Qualifications
1 19 (20.88%) Cisco Certification
2 14 (15.38%) CCNP
3 12 (13.19%) Security Cleared
4 10 (10.99%) CCNA
4 10 (10.99%) SC Cleared
5 9 (9.89%) Degree
6 6 (6.59%) MCSE
6 6 (6.59%) Microsoft Certification
6 6 (6.59%) VMware Certified Professional (VCP)
7 4 (4.40%) CCSA
7 4 (4.40%) MCP
8 3 (3.30%) CCDA
8 3 (3.30%) CCVP
8 3 (3.30%) JNCIS
9 2 (2.20%) CCA
9 2 (2.20%) CCAA
9 2 (2.20%) Citrix Certification
9 2 (2.20%) ITIL Certification
9 2 (2.20%) MCITP
9 2 (2.20%) Novell Certification
Quality Assurance & Compliance
1 14 (15.38%) SLA
System Software
1 25 (27.47%) Active Directory
2 14 (15.38%) VMware Infrastructure
3 12 (13.19%) Hyper-V
4 9 (9.89%) XenApp
5 5 (5.49%) Terminal Services
6 4 (4.40%) XenServer
7 2 (2.20%) ProxySG
7 2 (2.20%) vSphere
8 1 (1.10%) Virtual Servers
Systems Management
1 15 (16.48%) Cisco CUCM
2 8 (8.79%) Cisco UCCX
3 7 (7.69%) SCCM
3 7 (7.69%) XenMobile
4 3 (3.30%) Backup Exec
5 2 (2.20%) Cisco UCCE
5 2 (2.20%) Norton AntiVirus
6 1 (1.10%) Cisco Prime
6 1 (1.10%) RSA enVision
Vendors
1 51 (56.04%) Cisco
2 22 (24.18%) Microsoft
3 19 (20.88%) Juniper
3 19 (20.88%) VMware
4 15 (16.48%) CheckPoint
5 13 (14.29%) Citrix
6 11 (12.09%) Blue Coat
7 7 (7.69%) IronPort
7 7 (7.69%) Riverbed
7 7 (7.69%) Veeam
8 6 (6.59%) Avaya
8 6 (6.59%) Cognizant
8 6 (6.59%) SolarWinds
9 5 (5.49%) Google
9 5 (5.49%) Mitel
10 4 (4.40%) Dell
10 4 (4.40%) Extreme Networks
10 4 (4.40%) HP
10 4 (4.40%) Meraki
10 4 (4.40%) NetApp